EP0519467A1 - Druckgerät zur Herstellung von Flüssigkristallvorrichtungen - Google Patents
Druckgerät zur Herstellung von Flüssigkristallvorrichtungen Download PDFInfo
- Publication number
- EP0519467A1 EP0519467A1 EP92110304A EP92110304A EP0519467A1 EP 0519467 A1 EP0519467 A1 EP 0519467A1 EP 92110304 A EP92110304 A EP 92110304A EP 92110304 A EP92110304 A EP 92110304A EP 0519467 A1 EP0519467 A1 EP 0519467A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- extension
- extender
- printing apparatus
- projecting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007639 printing Methods 0.000 title claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 9
- 239000004606 Fillers/Extenders Substances 0.000 claims abstract description 19
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 7
- 229920000620 organic polymer Polymers 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims abstract description 5
- 238000010023 transfer printing Methods 0.000 claims description 12
- 239000000758 substrate Substances 0.000 claims description 4
- 239000002243 precursor Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims 1
- 239000000057 synthetic resin Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000976 ink Substances 0.000 description 40
- 230000007246 mechanism Effects 0.000 description 13
- 230000009471 action Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 210000002858 crystal cell Anatomy 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
- G02F1/133711—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by organic films, e.g. polymeric films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
- B41F35/008—Cleaning arrangements or devices for doctor blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F5/00—Rotary letterpress machines
- B41F5/24—Rotary letterpress machines for flexographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/02—Letterpress printing, e.g. book printing
- B41M1/04—Flexographic printing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/003—Printing processes to produce particular kinds of printed work, e.g. patterns on optical devices, e.g. lens elements; for the production of optical devices
Definitions
- the present invention relates to a transfer printing system wherein an ink is extended on an extension member by an extender blade, the extended ink is taken up by a printing plate, and the resultant ink image on the plate is transferred to a substrate to be printed.
- a flexographic apparatus has been introduced in a patterned film forming step in a liquid crystal cell production process, and the applicability thereof to a wide scope of materials has called attention.
- the utilization of a flexographic apparatus has been considered, first for application of an alignment material, such as polyimide, and also for application of an insulating material to be formed by sintering, a sealing material and various resists.
- a flexographic apparatus when used in production of liquid crystal cells, may include:
- a commercially available example of the flexographic apparatus which may be used for the above purpose is "Angstromer" (trade name, available from Nihon Shashin Insatsu K.K.).
- the apparatus has been characterized by its capability of controlling a thin film thickness with the use of an ink having a relatively low viscosity of from several cp (centipoise) to two-to-three hundreds cp.
- the apparatus is provided with two types of printing mechanisms as shown in Figures 5 and 6.
- an ink 3 is extended on an extension member of an extension roller 2 ( Figure 5) or an extension plate 8 ( Figure 6), respectively, of a metal by a blade-form extender member, such as a doctor blade 1, and the extended ink is taken up by a printing plate 5 of a rubber fastened to a cylinder roller 4 and transferred to a rigid substrate to be printed (as shown in Figure 7 corresponding to Figure 6), such as a glass plate 6 supported on a movable stage 7 ( Figure 5) or a fixed stage 7a ( Figure 6).
- An excessive amount of the ink on the extension member (8, 8a) is removed by the extender blade and received by an ink-receiving pan (9, 9a).
- the printed film thickness is principally controlled by the viscosity of the ink and the rate of opening and depth of a fine groove pattern formed on the extension roller 2 or extension plate 8.
- a difficulty is encountered when an ink having a viscosity of 500 cp or higher is used in the apparatus shown in Figure 5. More specifically, an excessive amount of the ink remains at the tip of the doctor blade 1, whereby the extending pressure exerted by the doctor blade 1 is affected by the remaining ink to change the extending and therefore the printing conditions.
- a principal object of the present invention is to provide a transfer printing apparatus capable of being applied to a wider scope of inks having a wider viscosity range while solving the above problems.
- Another object of the present invention is to provide a process for producing liquid crystal devices capable of showing an improved productivity by using such a transfer printing apparatus.
- a transfer printing apparatus comprising: a projecting extender, an extension member for extending an ink thereon in association with the projecting extender, a printing plate for taking up the extended ink and transferring the ink to a substrate to be printed, and also a removal means for an excess of the ink after extension from the projecting extender and/or the extension member.
- a process for producing a liquid crystal device including a step of applying a solution of an organic polymer or an inorganic oxide precursor to form a film of an organic polymer or an inorganic oxide by using the above-mentioned transfer printing apparatus.
- Figures 1C - 1C are side views for illustrating the extending and ink-removing actions of an extension roller in a flexographic apparatus according to an embodiment of the present invention.
- Figure 2 is a perspective view of the extension roller in Figure 1.
- FIG 3 is a perspective view of another extension roller usable in the apparatus of Figure 1.
- Figures 4A - 4E are side views for illustrating the extending and ink-removing actions of an extension plate in a flexographic apparatus according to another embodiment of the present invention.
- Figure 5 is a side view for illustrating a printing operation of a printing mechanism used in a conventional flexographic apparatus.
- Figure 6 is a side view for illustrating an extending operation of another printing mechanism used in a conventional flexographic apparatus.
- Figure 7 is a side view for illustrating a printing operation of the printing mechanism shown in Figure 6.
- a roller-shaped extension member for example, may be provided with a groove to remove an excessive amount of ink, and a flat plate-shaped extension member may be provided with an ink-removing member which is attached by an extender blade after passing the ink-extension surface of the extension plate to remove an excess ink.
- the transfer printing apparatus according to the present invention may particularly suitably be used for applying a solution containing an organic polymer or an inorganic oxide precursor.
- Figures 1A - 1C illustrate a structure and an action of a printing mechanism, particularly an extension mechanism, in a flexographic apparatus according to an embodiment of the present invention.
- the mechanism includes a doctor blade 1 and an extension roller 2 equipped with a groove 2a, and is suitably used in a printing apparatus of the type using an extension roller as shown in Figure 5.
- the extension roller 2 is provided with a groove 2a for removing an excess of ink 3a remaining on the doctor blade 1.
- an ink 3 is extended on the extension roller 2 by the doctor blade 1 (Figure 1A), and an excess 3a of the ink remaining at the tip of the doctor blade is caused to fall in the groove 2a (Figure 1B) and further scraped off by the edge of the groove 2a ( Figure 1C).
- inks with a broader range of viscosity can be extended and applied without causing extension irregularity, and a continuous running time is remarkably prolonged by suppressing a viscosity increase of the ink left attached to the tip of the doctor blade 1.
- the groove 2a of the extension roller 2 can be formed in parallel with the rotation axis of the roller 2 as shown in Figure 3 but may preferably be formed obliquely with respect to the rotation axis of the roller 2 as shown in Figure 2 in view of the ink-scraping effect and the protection of the doctor blade 1.
- Figures 4A - 4E are side views for illustrating a structure and a series of action of a printing mechanism, particularly an extension mechanism, in a flexographic apparatus according to another embodiment of the present invention.
- Figure 4A shows a state of extension
- Figure 4C shows a state of scraping-off.
- the mechanism includes a doctor blade 1, an extension plate 8, an ink receiver pan 9a and an ink-removing member 10.
- the mechanism is suitably used in a printing apparatus of the type using an extension plate as shown in Figures 6 and 7.
- the mechanism is provided with an ink-removing member 10 in the ink receiver pan 9a.
- the ink-removing member 10 was formed as a cylindrical bar of polyester.
- a means for removing an excess of ink from an ink-extender member and an ink extension member is provided, whereby a transfer printing apparatus has become applicable to a wider scope of materials or inks having a broader viscosity range, thus resulting in an enhanced productivity.
- a transfer printing apparatus having a blade-form ink extender and an ink extension member for extending an ink thereon in association with the ink extender, there is provided a means for removing an excess of the ink from the ink extender and/or and the ink extension member.
- the transfer printing apparatus is suitably used for forming a film of an organic polymer or an inorganic oxide in a process for production of a liquid crystal device.
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Liquid Crystal (AREA)
- Printing Methods (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Plates And Materials Therefor (AREA)
- Rotary Presses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP174800/91 | 1991-06-20 | ||
JP3174800A JPH04371838A (ja) | 1991-06-20 | 1991-06-20 | 転写印刷装置、転写印刷方法および液晶素子の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0519467A1 true EP0519467A1 (de) | 1992-12-23 |
EP0519467B1 EP0519467B1 (de) | 1996-10-16 |
Family
ID=15984889
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92110304A Expired - Lifetime EP0519467B1 (de) | 1991-06-20 | 1992-06-17 | Druckgerät zur Herstellung von Flüssigkristallvorrichtungen |
Country Status (6)
Country | Link |
---|---|
US (1) | US5639511A (de) |
EP (1) | EP0519467B1 (de) |
JP (1) | JPH04371838A (de) |
KR (1) | KR970000775B1 (de) |
AT (1) | ATE144182T1 (de) |
DE (1) | DE69214527T2 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6359056B1 (en) | 2000-01-27 | 2002-03-19 | Kodak Polychrome Graphics Llc | Printing plate and method to prepare a printing plate |
US7514149B2 (en) * | 2003-04-04 | 2009-04-07 | Corning Incorporated | High-strength laminated sheet for optical applications |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE282786C (de) * | ||||
GB1525805A (en) * | 1976-05-14 | 1978-09-20 | Rotobind Ltd | Printing apparatus and method |
GB2043537A (en) * | 1978-05-25 | 1980-10-08 | Service Eng Ltd | Offset screen printing |
EP0257103A1 (de) * | 1986-03-03 | 1988-03-02 | Nissha Printing Co., Ltd. | Anordnung zur herstellung eines dünnen filmes |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1773949A (en) * | 1928-08-10 | 1930-08-26 | Oxford Varnish Corp | Photogravure roll |
US2974586A (en) * | 1960-04-19 | 1961-03-14 | Hunt Forest Wethero | Doctor blade and doctor blade shear for textile printing machine |
GB1299263A (en) * | 1970-02-04 | 1972-12-13 | Gestetner Ltd | Printing machine blanket cylinder cleaning device |
US4026210A (en) * | 1975-04-24 | 1977-05-31 | Rotobind Ltd. | Printing apparatus and method |
US4466349A (en) * | 1981-12-21 | 1984-08-21 | Bartlett Norman C | Cylinder construction for a printing press |
EP0368260B1 (de) * | 1988-11-10 | 1995-01-18 | Kabushiki Kaisha Toshiba | Flüssigkristall-Anzeigevorrichtung, Farbfilter hierfür und Verfahren zur Herstellung des Farbfilters |
DE59009335D1 (de) * | 1989-11-18 | 1995-08-03 | Roland Man Druckmasch | Verfahren zur Druckvorbereitung eines Druckwerks und dazu verwendbares Druckwerk. |
-
1991
- 1991-06-20 JP JP3174800A patent/JPH04371838A/ja active Pending
-
1992
- 1992-06-17 DE DE69214527T patent/DE69214527T2/de not_active Expired - Fee Related
- 1992-06-17 EP EP92110304A patent/EP0519467B1/de not_active Expired - Lifetime
- 1992-06-17 AT AT92110304T patent/ATE144182T1/de active
- 1992-06-20 KR KR1019920010760A patent/KR970000775B1/ko not_active IP Right Cessation
-
1995
- 1995-05-15 US US08/440,880 patent/US5639511A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE282786C (de) * | ||||
GB1525805A (en) * | 1976-05-14 | 1978-09-20 | Rotobind Ltd | Printing apparatus and method |
GB2043537A (en) * | 1978-05-25 | 1980-10-08 | Service Eng Ltd | Offset screen printing |
EP0257103A1 (de) * | 1986-03-03 | 1988-03-02 | Nissha Printing Co., Ltd. | Anordnung zur herstellung eines dünnen filmes |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 10, no. 143 (P-459)27 May 1986 & JP-A-60 262 129 ( SANYO DENKI KK ET AL. ) * |
PATENT ABSTRACTS OF JAPAN vol. 5, no. 37 (M-058)10 March 1981 & JP-A-55 161 650 ( HITACHI LTD ) * |
Also Published As
Publication number | Publication date |
---|---|
ATE144182T1 (de) | 1996-11-15 |
JPH04371838A (ja) | 1992-12-24 |
US5639511A (en) | 1997-06-17 |
EP0519467B1 (de) | 1996-10-16 |
DE69214527T2 (de) | 1997-02-27 |
KR970000775B1 (ko) | 1997-01-20 |
DE69214527D1 (de) | 1996-11-21 |
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